Making Out in the Name of Science

Scientists at Layfayette College in the big PA learn that kissing is super healthy. Locking lips reduces a stress hormone called cortisol in both men and women. And as a bonus, guys get a spike of oxytocin which is a hormone linked to social bonding.

Dr. Helen Fisher of Rutgers adds that sharing cooties boosts your immunity. And British scientists say chocolate is no proper substitute for a romantic partner. The physiological response from chocolate withers in comparison to a good, old-fashioned smooch. Romantic love promotes an effect in our brains that’s like cocaine.